This standard specifies the safety requirements of a two-hand control device and its logic unit as defined in 3.1. This standard describes the main characteristics of two-hand control devices for the achievement of safety and sets out combinations of functional characteristics for three types. This standard does not apply to devices intended to be used as enabling devices, hold to run devices and as special control devices. This standard does not specify with which machines two-hand control devices shall be used. It also does not specify which types of two-hand-control device shall be used. Moreover it does not specify the distance between the two-hand control device and the danger zone (see 9.8). The standard provides requirements and guidance on the design and selection (based on a risk assessment) of two-hand control devices including their assessment, the prevention of defeat and the avoidance of faults. The standard also provides requirements and guidance for two-hand control devices containing a programmable electronic system (see 7). This standard applies to all two-hand control devices, independent of the energy used, including: Two-hand control devices which are or are not integral parts of a machine; Two-hand control devices which consist of one or more than one separate elements.
EN 574:1996+A1:2008 Referenced Document
EN 1050:1996 Safety of Machinery - Principles for Risk Assessment
EN 292-1:1991 Safety of machinery; basic concepts, general principles for design; part 1: basic terminology, methodology
EN 60204-1:1992 Safety of machinery; electrical equipment of machines; part 1: general requirements (IEC 204-1:1992, modified)
EN 954-1:1996 Safety of Machinery - Safety-Related Parts of Control Systems - Part 1: General Principles for Design
prEN 894-1-1992 Safety of machinery; ergonomics requirements for the design of displays and control actuators; part 1: human interactions with displays and control actuators
prEN 894-2-1992 Safety of machinery; ergonomics requirements for the design of displays and control actuators; part 2: displays
prEN 894-3-1992 Safety of machinery; ergonomics requirements for the design of displays and control actuators; part 3: control actuators
EN 574:1996+A1:2008 history
2008EN 574:1996+A1:2008 Safety of machinery - Two-hand control devices - Functional aspects - Principles for design
1996EN 574:1996 Safety of machinery - Two-hand control devices - Functional aspects - Principles for design (Incorporates Amendment A1: 2008)